1 . China is a ________ (develop) country while America is a _________ country (develop). (所给词的适当形式填空)

2 . China is a ________(develop) country ________(belong) to the Third World. (所给词的适当形式填空)

4 . China, which is a _______ (develop) country now, will be advanced and powerful in 20 or 30 years.（所给词的适当形式填空）

5 . 词性转换
1. decorate v.装修；装潢→____________________n.装饰物；装饰
2. deep adj.深的；厚的→____________________n.深（度）；纵深→____________________v.加强，变强烈；加深
3. defend v.保护；为......辩护→____________________n.保护；防护
4. depend v.依赖；依靠→____________________n.依赖；依靠→____________________adj.依赖的；依靠的→____________________adj.独立的；自主的
5. describe v.描述；形容→____________________n.形容；说明→____________________adj.描写的；叙述的
6. determine v.决定；确定→____________________n.决心；决定→____________________adj.有决心的；意志坚定的
7. develop v.成长；发展→____________________adj.发展中的→____________________adj.发达的→____________________n.成长；发展
8. devote v.致力于；献身于→____________________n.挚爱；奉献
9. differ v.不同；有区别→____________________n.差别；差异→____________________adj.不同的；有差异的
10. difficult adj.困难的→____________________n.困难

6 . It is in fifty years        China will become one of the most                countries in the world.

A．that: developed	B．since:   developed
C．when; developing	D．before; developing

7 . 难道发展中国家不能举办世界博览会吗？（host）（汉译英）